Push button



s. ANTHONY PUSH BUTTON Filed Jan. 5. 1922 Figll 1 nvenor. Stanley Am` hony z tures will be pointed out in the appendedv .Patented est. e, icas.

STANLEY ANTHQNY, or BOSTON, MASSACHUSETTSQ 7 i ieUsH BUTTON. A

Application filed January 3, 19552. 'Serial No. 526,641. v. i. i

-This invention relates to pushl buttons and v, l has for itsobj ect to provide an improved push button which is relatively simple in construc- V tion, which can be easily assembled, and

`li which has other advantageous featuresallas .i will be more Jfully hereinafter set` forth. y

In order to give an understanding of the invention I have illustrated in the drawings a selected embodiment thereof which" will now be described after which .the n ovel fea#` claims.

In the drawings, Fig. 1 is al sectional'view I of a push button embodying my invention. 15 Fig. 2 is a showing the way in which the `stops on the contact fingers co-,operate with the base to limit the movement of the button.4

Fig. 3 is an enlarged sectional view through the outer end of the push but-ton. Fig. 4 is a view with a portion shown in section onthe line V4, Fig. 1. l Fig. 5 is a perspective view of the confiner member.. l Y

Fig. 6 is a perspective section on the line 6 6, Fig. 1.

Fig. 'Tis a 7J, ing. i.

perspective section on theline 3 ber with the terminals yattached thereto.

, v Fig, 9 isa sectional view showing theV manner of connecting-the terminals to the ybase plate. v v v' -I My improved push buttoncoinprises a shell 1 of metal which encloses the various parts of the device and which is set into the wallorv block 'or/other member that supportsthe push button. At the inner end of the shell 1 is. a. base member 2 of insulating material circuit` wires 4 are connected. .These termi. nals 3.are formed with contact portions 5 which are. engaged by the ccntact fingers of the push button.

. The terminals 3 are secured Y base member 2, and thisisaccomplished herein .by forming the base member with two apertures 6 therethrough through which the vupper ends 7 of the terminals 8 extend."

,. The upper end 7 of each terminal vis reduced in width therebygforming the shoulders 8 whichengage the under side of Vthe base member 2` and the terminal isploched in position-by swedging over the corners .of the upper end of the terminals, as shown at 9. t

Thecontact fingers lof thevppush button are fragmentary sectionaly view" Fig 8 is perspective view of the base meine which carries the two terminals 8 to which thev directlyvto the' indicated -at10 andthey extend through an opening in the base member 2, and are conand it receives not only the vfinger-suppornn'g dish 11 butalso the pea-rl button 18, the latter fitting tightlyinto the sheath 12 and-being 65 v retained therein in any suitable way.

14 indicates Lthe spring which normally" holds the push button 13 in retractedpositioii I and the fingers 10 out .of engagement with the contacts 5. This spring 14 is received be- 70 tween the sheath 12 and aconfiner disk 1 5 of. l insulating material which is situated directly above the base plate 2. The vfunction of thev confinerplatevl'is to hold the fingers v1() properly centered `when the button 13 is 75 in its retracted position and thus prevent accidental engagement'between the fingers and the contacts 5.,''1his-confiner disk is lfiXedlyy mounted inthe shell 1 and is 'formedwith a central opening 16 through which the contact 80 fingers'lO extend, said opening preferably bei y ing provided with the convexv faces 17 which i engage the lingers 10. The size of this opening 16 is such. that' when .the parts are in their retracted posit-ion, shownin Fig. 1, the fingers 10 are prevented. from separating from each other to such an extent aste'engage the con'-` tact faces l5. rlhe inner ends of the lingers 10 are bent inwardly slightly as sho-wn at 18 Y to form contact. portions. which engage the 90 contacts 5. when the button 13is depressed.

'lt is necessary 'that thelingers'lO should be completely insulated froni'the sheath 12 andfroin the shell. 1 and Iaccomplish this herein by. a dislr319` of insulating materialf which'is situatedwithin the sheath .12 andA between'thebottom 20 thereofand the ,disk 11. The disk 11 has a smaller diameter than the interior of thelsheath 12th'ereby leaying a spacebetween the periphery ofthe disk and the wall of the sheath,l and tofhold the vdisk 11 properly centered, the central portion is depressed as shown at 21 andthe disk 19 is lprovided.V with a central aperture to receive.

this depressed portion. The button'l'is usu- 105Y insulatingmaterialso that with this .construction the contactviingers 10 are f thoroughly insulated from the 'sheath V and rhe fingerslO. be secured to the diskll 117,0

ally ,of some invany suitable way. One convenient wayi is te ferm the disk 11with a central boss 22, and Y g 'tnt-.nt

lto make the two vHngers from a single stripV of metal bent into U-shap'e, the bridge or connecting port-ion 23having an opening to receive the boss 22,?which istheii headed or spun over, as shown at 24, thereby rigidly securing the lingers 10 tothe disk 11.

` The fingers 1G are provided with stops which co-operate with the base 2 to limit their movement in bothdi-rections. Each finger is formed at its lower endwith wings or eXtensions 25 which are situated beneath'the base member 2, and with other wings or extensions 26 situated above the base member.

The opening inthe base plate 2 Y which the fingers 10 extend is provided with the twoportions 26 which are of a width corresponding to the width of the portion-ofl the lingers between the stops and is also provided -witha central portion 27 which is ofa width sufficient to permit the wings to pass therethrough. rlhis construction is for the pur- .pose of facilitating the assembling of the parts. For after the viingershave been connected to the disk 11 and the latter placed in the sheath 12 with the insulating disk19, then the lingers may be inserted through the aperture 16 inthe confiner ring 15 and by pressing the fingers 10 toward. each other the Vwings 25 are broughtftogether so that they Vmay be inserted through the enlarged portion 27 of the opening in the base member. When this is done and `pressure is relieved on the lingers theywill spread apart as far as permitted by the confiiier ring 15 and will occupy the narrow portions 260 of the opening in the base, as shown in Fig. 7. `When in this position the stops 26 `co-"operate with the upper face of the base plate 2 to limit the inward i movement of the but-ton and the stops 275 cooperate withthefunder face of `said base plate to limit the spring-impelled retractive movement of said button.

. to; receive t The contact portions 5 of the terminals may conveniently be made by striking up a portion of the terminal. v The lower end of each terminal is shown as having two projections 28 extendingtherefrom, said projections of each terminal forming between'them a space 29 he'end of the circuit wire il. The circuit wireis attached to'A the-terminals by means of Abinding screwO and in accomplishing this the screw` 30 isloosened and the wire is looped about the screw with t-he kend 31 of the wire passing `down through the space 29 asbest seen in Fig. 8. l The two prov jections28,serve to hold the wire from slippingwhile thescre-w is vtightened so that in tightening thefscrewy there will be no danger that the wire will` be crowded out from under the head' of the screw. Y f

'The sheath 12iis provided with a circular depending flange 32, the purpose of which is to act as a means for positioning' thefspring 14. It will be noted that the upper end of the l spring encircles this flange 32 and the latter through serveslto hold the spring properlycentered said ba'eevmember having an opening, each end of which isfoimedwith a widened portion, a button element movably mounted in' the shell, a spring acting againstthebutton element and tending tov hold it in retracted position, two'terminals, each having one end occupying and anchored in one of the widened portions of said opening,- and eachr eX- ten ling from the base member. in a direction at substantially right angles thereto,. a binding screw carried by each terminal adjacent its free end, each terminal having a Contact;

portion struck up therefrom at a point'be-' tween the base member and the binding sci-ew, twoi'esilient contacts connected to the button element and extendingentiioly through the base member when the lbutton is in its retracted position, each contact having two stop shoulders, one cooperating with the bottom face of the base member to limit the springiinpelled movement of the button andthe other co-operating with the top face of the base member to limit the depressing movement thereof 2. ln a. push button, the combination with` a shell, of a base member of insulating. materialanchored therein, two terminals carried by said base member, a button element movably mounted in thel shell,'two contacts associated therewith and ext-ending through the basememben'and a spring tending to hold' the button element in retracted position,` each contacthavingtwo stop shoulders, one cooperating with the under side of the base lmember to limit -the spring-impelled movement of the button, and the other yco-operat- 3. In a push button, the combination with ing with the top of the base member to limit vthe depressing movement of the button.

iio

a shell, of a base member carried thereby, two 'i terminals carried by the base member,"each terminal having an inwaidly-extending'con-` tact struck up therefrom and formed at its end with two spaced outwardly extending lateral projections, anda binding screw carried by each terminal above said projections whereby the end of the circuit wire which is looped about Athebinding screw may be retained between said-projections;

4..' In a push button, the combination with a shell, of abase member of insulating material yanchored therein, said base member having an elongated opening two terminals secured to'said base member at the ends of the opening and each having a Contact portion,'

a button element siidabiy mounted in the shell, a pair of resilient contacts cairied thereby end extendingp through the openingl in the base member and adapted to engage the contact portion of the terminals when the button is depressed7 and a confiner diskseparate from the base member and situated in the sbeil through WhicbL the contacts eztend,` said coninei' disk serving to limit the movement of said contacts away from each other.

5. n a puse button, the combinationA with a shell, oi"v a base of insulating material anchored therein, tivo terminals carried thereby, each having a Contact portion7 a `cupshaped sheath slidabiy mounted in the shell and having a central opening an insulating disk in said siieath and also hir-ving` a central openinga a contact-supporting disk on the insuiating dish and having a depreesed portion entering` the openi' "thereof whereby the contact-supporting di is heid properly A centered, and tivok contacts lsecured to saidV Y Contact portions, a sheath. siidably mounted contact-supporting disk.

6. In a push button, the combination With shell, of a' base member carried thereby, tivo terminals secured to the base member, each terminal havingl a Contact' associated there with,y the ends oi the terminals beiifig4 biturcated and thebifurcated portions bent later-Y ally to form\ spaced projections between which the circuit Wire is received, a binding` screw carried by each terminal aboveV said projection and to Which the circuit Wire is atnaine to thisfspeciiication.

tached, the projectionson each terminal embracino ti e aortion oi' the circuit Wire' leadto the binding screviga buttoneleinent slidabiy mounted in the sheihand a pair of resilient contacts carried'by the button e1enient and edapted to engage thef'contactsoi the terminals. i

7. in' a lush button the combination Withi- .f -1 n sheily oi a'base member carried thereby, two

termina-is `carried the base member, each tcrininei having` a portionstruck up there- Y* uit Wire which leads tothel screw is. cenined projectionsy a button element idabiy mounted in thV sheil and a pair of resiiient Contacts carried thereby and adapt ed to engage the Contact portion of the ter- 8. n a push button$ thecombinetion with a sheib of terminals carried thereby and having in the sbc-ii end having afcentrei opening and a circuizfr dependingv r'iange, e button in said sheath, 7resiiieiit eentects associated ivith the brttoii..Y a spring tor holding t ie button yieidin 1y in retracted positionrsaid spring encirciiiig' said being positionedthereby. l v

testimony whereof, I have STANLEY ANTHONY.

signed my 

